Optoma Technology Replacement Lamp for TW635-3D and TX635-3D DLP Projectors
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Description
Vortex 10x50 Viper HD Binocular (2018 Edition)High Density Extra Low Dispersion Glass Phase Corrected and Dielectric Coated XR Fully Multi Coated Optics Scratch Resistant ArmorTek Lens Coating Wide 66 Apparent Angle of View Lightweight Polycarbonate Chassis Argon Purged, Waterproof & Fogproof Large Center Focus Wheel Tripod Mountable with Optional Adapter Twist Up Eyecups and Locking Diopter This updated 2018 version of the Vortex Viper HD 10x50 Binocular gets upgraded with a significantly wider
- High-Density Extra-Low-Dispersion Glass
- Phase-Corrected and Dielectric Coated
- XR Fully Multi-Coated Optics
- Scratch-Resistant ArmorTek Lens Coating
- Wide 66° Apparent Angle of View
- Lightweight Polycarbonate Chassis
- Argon Purged, Waterproof & Fogproof
- Large Center Focus Wheel
- Tripod Mountable with Optional Adapter
- Twist-Up Eyecups and Locking Diopter
This updated 2018 version of the Vortex Viper HD 10x50 Binocular gets upgraded with a significantly wider field of view and angle of view in a slightly smaller form factor from the previous iteration to make views more spacious and viewing through them easier and more comfortable.
Optically, this binocular benefits from proprietary XR anti-reflection fully multi-coated optics that maximize light transmission through the light path and improve contrast and color rendition across the entire visual spectrum. The compact roof prisms are dielectric coated. Phase-corrected coatings limit internal interference, light loss, and diffraction while maximizing light transmission through the prism system. These features work together to produce bright, sharp, and clear high-contrast views with accurate color fidelity and crisp resolution. The large 50mm objective lenses draw in generous amounts of light to maintain bright and crisp images even when conditions are less than ideal, such as in the pre-dawn and late dusk hours or when looking into dense brush or using under heavy cloud cover.
Complementing the optical performance are construction details that allow the Viper HD to withstand the rigors of the trail. The optical tubes are argon filled and O-ring sealed to be waterproof and resistant to internal fogging if the weather turns or they take an accidental spill in a stream or puddle. Protecting the optical components is a polycarbonate chassis that is lightweight and durable as well as resistant to the expansion and contraction that metal suffers from and which can lead to fuzzy views over time. Vortex includes a GlassPak binocular harness case that protects the optic when not in use while keeping it close to your body, preventing swinging and swaying as you move or climb over rough and rocky terrain. Objective lens caps and a one-piece ocular rainguard protect the exterior lens surfaces. To keep the caps and rainguard safe during use, they are tethered to the body and strap, respectively.
- Optical Performance
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- High 10x magnification brings distant subjects in for close observations
- Large 50mm objective lenses provide generous light-gathering capability for improved vision in challenging conditions such as at dawn and dusk
- Compact roof prism light path enhances performance while helping to keep the weight and bulk down
- Phase-correcting prism coatings eliminate internal interference to improve color and contrast
- Dielectric prism coatings boost internal prism reflectivity to greater than 99% to maximize light transmission through the prism with minimal loss and diffraction
- High-density (HD), extra-low-dispersion (ED) glass lens elements reduce chromatic and spherical aberrations for increased contrast and improved color rendition and sharpness without distortion across the entire field of view
- Proprietary XR anti-reflection fully multi-coated optics increase light transmission for accurate color fidelity and improved contrast and clarity
- ArmorTek exterior lens coatings resist scratches and abrasions while allowing oil, dirt, and sap to be cleaned off without leaving smudges or residue
- Wide 66° apparent angle of view helps to reduce the appearance of the distracting hand shake that is common when holding high-power optics such as this
- 346-foot field of view at 1000 yards
- Use and Handling
-
- Closed bridge configuration provides a solid platform for the internal focusing mechanism
- Large slip-resistant center focus knob is easy to manipulate in cold and wet weather or while wearing gloves
- Locking right eye dioptric correction lets you compensate for individual eye prescription for tack-sharp views
- 56-75 mm interpupillary distance range allows easy viewing by a wide variety of users
- Twist-up click-stop rubber eyecups for comfortable use with or without eyewear
- Tripod mountable with an optional adapter for hands-free use to reduce vibration and arm fatigue
- 16mm eye relief reduces eye strain to make for more comfortable viewing, especially over extended periods
- Wide 5mm exit pupil will completely cover pupils as they open and fully dilate in low light to ensure the whole scene remains in view without vignetting
- Construction Details
-
- Lightweight and impact-resistant polycarbonate chassis
- Chassis material is temperature resistant, limiting the expansion and contraction that can occur with metal materials and which can cause the optical components to move out of alignment over time
- Rubber armoring provides protection from bumps and impacts while offering a positive slip-resistant grip in cold and wet weather
- Argon-filled and O-ring sealed to be waterproof and resistant to internal fogging when moving through extreme changes in temperature or environmental conditions
- Tethered objective lens caps and one-piece ocular rainguard protect the lens surface without the fear of losing them when not in use
- GlassPak binocular harness holds the optic close to your body to keep them safe and secure without swinging or hanging when moving or climbing over rough terrain
UPC: 875874009080
In the Box
Vortex 10x50 Viper HD Binocular (2018 Edition)
Vortex Viper specs
| Prism Type | Roof |
| Magnification | 10x |
| Objective Lens Diameter | 50 mm |
| Angle of View | 6.6° (actual) |
| Field of View | 346.0' @ 1000 yd / 114.9 m @ 1000 m |
| Minimum Focus Distance | 8' / 2.4 m |
| Exit Pupil Diameter | 5.0 mm |
| Eye Relief | 16.0 mm |
| Interpupillary Adjustment | 56.0 - 75.0 mm / 2.2 - 3.0" |
| Dioptric Correction | Not Specified by Manufacturer |
| Focus Type | Center |
| Tripod Mount | Yes (Adapter Optional) |
| Dimensions | 6.5 x 5.2" / 16.5 x 13.2 cm |
| Weight | 28.4 oz / 805.1 g |
| Package Weight | 2.95 lb |
| Box Dimensions (LxWxH) | 9.8 x 7.8 x 4.5" |
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 4
Time will tell
Style: CA11053A
As another reviewer pointed out, the OEM paper filter is almost 3 times thicker than this one. All things equal, thicker would mean for filtering surface area. So with less filter media surface area, the filter would clog up quicker. However, since this is washable, maybe that's a moot point. I also noticed on my Hyundai Tucson, the rim of this filter must be slighter thicker because I had a tougher time clipping the filter box closed with this one installed. I am keeping my OEM for now, just in case.
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Reviewed in the United States on December 6, 2025
★★★★★ 5
PhilTop engine filter 1/2 the price of K&N filter No difference
Not much difference than K&N filter But 1/2 the price 100% identical
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Perfect fit for my 2018 Civic—easy, affordable, and worth it
Size: 9.5" x 10.9" x 2.1"
I’ve bought this cabin air filter multiple times for my 2018 Honda Civic, and it’s consistently great quality. It fits perfectly and is super easy to install—takes just a few minutes to swap out, and I always do it myself. Way cheaper than going to a shop or dealership. The airflow is smooth, there’s no smell at all, and it keeps the inside of my car feeling clean and fresh. No weird odors, no dust blowing in—just a solid, dependable filter that does its job well. This is the only one I’ll keep buying.
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Reviewed in the United States on May 11, 2025
★★★★★ 5
Do it mayne
Size: 9.5" x 10.9" x 2.1"
Good quality and fit but find it funny that the instructions with the air flow are on the side. I assume that would be facing out and was annoyed when I tried to close and it didn’t fit. Probably should have read the directions. Still would recommend
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Perfect fit, durable and affordable
Size: 9.5" x 10.9" x 2.1"
Ordered this for our 2023 Honda civic. Great fit, durable and very affordable. Was so easy to pull old one out and replace new one. Will be ordering again.
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Reviewed in the United States on November 3, 2025